Cylinder-car



No-Modei.) ZSheets-Sheet 1 T. T. PROSSER.

Cylinder Car.

Patented Aug. 10,1880.

641768 Z-7z 2/672 Z027 fi fiawwa N. PETERS. PHOTO-LITHOGRAPMER,WASHINGTOMD. c1

(No Model.) 2 Sheets-Sheet 2.

T. T. PROSSER. Cylinder Car.

No. 231,089. Patented Aug. 10,1880.

' Fl/ 1111,1 \ir:

N. PEI'EflS, FHOTO-LITNOGRAFHER. WASHINGTON. D C.

UNITED STATES PATENT OFFicE.

' TREAT T. PROSSER, OF CHICAGO, ILLINOIS.

CYLINDER-CAR.

SPECIFICATION forming part of Letters Patent No. 231,089, dated August10, 1880.

Application filed May 10, 1880. (No model.)

To all whom it may concern:

Be it known that I, TREAT T. PROSSER, a citizen of the United States,residing at Ohicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Cylinder-Oars and I dohereby declare the following to be a full, clear, and exact descriptionof theinvention, such as will enable others skilled in the art to whichit appertains to make and use the same, reference being had to theaccompanying drawings, and to letters or figures of reference markedthereon, which form a part of this specification.

This invention relates to rolling-cylinder freight-cars of the characterdescribed in several United States Patents granted to me on the 17th dayof February, 1880 and it relates more particularly to such a carprovided with cast wheels formed with a dome-shaped web of less diameterthan the flanged tire, and with a vertical annular bolting-ringconnecting the dome-shaped web and the tire-wheels such as described inan application for a patent filed by me of even date with theapplication for this patent.

The invention consists in combining a cylindrical shell made ofboiler-iron in whole or in part with longitudinal cast plates or frameswhich serve to stiffen the shell and are provided with suitable gatewaysthrough which the car may be loaded and unloaded.

It further consists of certain means for se curely connecting thecylindrical shell and its wheels together.

It further consists in the application of sliding gates to control theopenings in the said cast frames.

In the annexed drawings, Figure 1 is a plan view of my improvedrolling-cylinder freightcar. Fig. 2 is an axial section thereof in aplane indicated by the broken line 00 x of Fig. 1. Fig. 3 is across-section thereof. Figs. 4 to 6 illustrate a modification in theconstruction of the cylinder-shell, sliding gates, and cast frames.

The same letters of reference are used in all the figures'j'infgthedesignation of identical parts.

As shown in the first three figures, themain part of the cylindricalshell of the car is composedgof two segmentsfZA A, of boiler-iron,

constructed with numerous fine perforations to provide for a circulationof air through the grain in the car, air being admitted through thehollow journals of the car and distributed by a centrally-arrangedperforated pipe, in manner substantially as described in United StatesPatent No. 224,724. The boiler-iron segments, which may be made ofsingle plates if deemed expedient, are combined with two cast frames, BB, to complete the cylindrical shell of the car. These cast frames,running the whole length of the cylindrical shell and possessing greatrigidity, serve to stiffen the cylindrical shell so as to prevent unduevibration and buckling of the boiler-iron segments. Furthermore, thesecast frames admit of forming openings in the shell, for loading andunloading purposes, without unduly weakening the cylindrical shell, assuch openings can be and are made in these cast frames. The boiler-ironsegments may be riveted or bolted to these cast frames, which are tothat end provided with suitable flanges. In order to preserve thesymmetry of the exterior contour of the cylindrical shell the castframes may be made segmental in ciossseetion, as shown.

Stiffening-strips a are applied to the ends of i the boiler-ironsegments.

The wheels 0 O are fitted upon the ends of the shell, which projectsinto the flanged tires and abuts with its ends against the boltingrings0 of the wheels. The shell and wheels are firmly secured together bymeans of a series of tie-rods, D D, which extend through the wholelength of the cylindrical shell and through holes in the bolting -ringsof the wheels, and are tightened up by nuts or other suitable means onthe exterior of the boltingrings of the wheels. If deemed expedientthetie-rods may be constructed with heads at one end. These tie-rods arearranged to lie close against thecylindrical shell, which arrangein cutaccomplishes two desirable obj ects First, the rods give support to theshell against inward pressure, and, secondly, they serve the purpose ofribs to prevent the shifting of the grain and its attrition on thecylindrical shell, acting, as regards this, like the radial ribs on theinterior surface of the dome-shaped webs O of the wheels.

Each cast frame B is constructed with a large opening, B, through whichthe loading and unloading of the car is effected. This opening iscontrolled by a pair of sliding gates, E E, fitted to move in coveredways or guides in the ends of the frame.

The under side of the gate has a lug formed on it provided with ascrew-threaded eye to receive a screw, F, which extends inward throughthe end of the frame in which it is swiveled, so that it may freely turnwithoutmovin g endwise. The outer end of the screw passes through a holein the bolting-ring of the wheel and is provided with a square head, sothat a key or winch may be applied to it to 'turn it. In order toprevent the grain from ologgin g the screw I construct the frame with atight pocket, d, at each end, in which the screws and the screw-threadedlugs on the gates play. The gates slide in the same planes, so thattheir adjacent ends will touch in closing the opening in the frame.

The screws of the gates are swiveled in the frames by means of a collaron the screw, fitting a recess in the end of the frame and abutting withits outer shoulder against the bolting-ring of the wheel.

As shown in Figs. 4 to 6, the sliding gates are fitted in open guidewaysin the frame. The pockets in which the screws and screwthreaded lugs onthe gates play are left open at their inner ends, and the collars on thescrews for operating the gates are confined in the ends of the frame, soas not to require the assistance of the bolting-rings of the wheels forpreventing their longitudinal movement. The cylindrical portion of thecar between the wheels is a complete shell of boiler iron, and the castframes are bolted on theinside of it, suitable holes being cut in theboiler-iron shell to expose the openings in the cast frames when thegates are open. It will be seen that the boiler-iron shell, passing overthe ends of the cast frames, will form a cover for the sliding gates.

It will be readily seen that this modification of the invention does notessentially differ from the form of the invention first described.

The invention may be embodied in other forms diiferin g in details ofconstruction from the forms described. For instance, the frames B B maybe made of stout wrought-iron without departing from the spiritof myinvention.

I do not claim herein a cast ear-wheel composed of a flanged tire and adome -shaped web, nor a cast carwheel composed of a flanged tire, adome-shaped web of less diameter, and a vertical annular bolting ringbetween the flanged tire and the domeshaped web, as such car-wheels areclaimed in other applications for patents filed by me of even date withthe application for this patent.

What I do claim as new herein is- 1. The cylindrical shell composed ofboileriron, combined with longitudinal cast plates or frames containingopenings for loading and unloading purposes, substantially as before setforth.

2. The combination, substantially as before set forth, of thecylindrical shell, the wheels fitted onthe ends thereof, and thetie-rods for securing the wheels and shell together.

3. The combination, substantially as before set forth, of thecylindrical shell, the wheels fitted on the ends thereof, and thetie-rods arranged close against the shell to act as ribs therefor aswell as instrumentalities for securing the wheels and shell together.

4:. The combination, substantially as before set forth, of thecylindrical shell constructed with cast plates or frames havingopenings, a pair of sliding gates for each cast frame, and the gateoperating screws passing from the ends of the cast frame through holesin the wheels.

In testimony whereof I affix my signature in presence of two witnesses.

TREAT T. PROSSER.

Witnesses:

H. B. PRossER, HrVVJANDERSON.

